Latch mechanism.



yUNITED sTATns ATENTl *.OFFTCE.

`HENRY e. vOIeHT, OF BR1TA.1N, 'CONNECT1CUT, AssIeNoR To RUssELLa ERWIN MANUFACTURING COMPANnOFNnw/v BRITAIN.. CONNECT1CUT,A CORPORATION OFCONNECTTCUT.

LATCH AMEQHANISMQ resented July '31,v i906.

Application filed March 11, 1905. :Serial No. 249,516.

l.To all .whom/'it may concern'.- f f Be it .known 'that I, HENRY G. Volants, .-a

p citizen Vofthe -United States, residing at ,New

Britain, county of Hartford, State of- Con- 5 necticutrhaveinvented certain new Iand us'e-v -fu'l Improvements in Latch Mechanisms, of which the following is` a-full, clear, andl exacty description. Y f

vention relates to mprovementsinl 1o the class of locks and latches, and relates parl fticularly to an improved latch mechanism for doors, the same being of aunique type ywhich maybe easily and quickly fittedto a ,doorvby simply boring holes therein at vcer- 15. tain places and by forming a shallow notch` .inthe 'edge of thestile insteadof the more laboriousmethod of forming the usual mor. ,..tise,.such.as requiredbymechanisms of'the :'ordnary well-known case type.

.2o. Many other advantages are attained, such f as simplicity of .constructionrand operation. The mechanisms are of such construction that when .merel `assembled all of the parts are so'locatedre atively to one anotherthat 2 5.,.each-may 'be thoroughlyv tested for any'jpur` `)pose without the necessity of applying it vactuallyto a door. 'A

The side plates being movable to and fro vrelative to each other the mechanism isiad- 3o. justable tol doors of different thicknesses.l

lntheaccompanying drawings, .Figure 1 is Ya planview. Fig. 2is`asectionon theplane .of the'line X.X, Fig.j1, looking .the 'direcv`tionofthe arrows. ,.Fig. 3 is a horizontal 35'1sectionofthe apparatus on the .line Y Y, lFig.V 2.' Fig. 4 is a vertical section on the' line -LZ'Z, Fig. 1.` v In the particular formof the mechanism fshown inthe drawings, Aisan escutcheon- 4o plate for-theouter` side of the door. y

" LB isan escutcheon-plate for theinner sidel -fofthe door. v

yC is anv en d plate carried by the late A. .-Dis aboss onlthe inner side oflp ateA and 45 arranged lto 4receive -a screw E, passing through.h late B and by which said plates .,fmay be c amped tightly inplace against the sides of the door. F'Fiare knobs. In 'the form shownF'is .5o ltheouter knob; F', the innerknobf., The in- 'ner lknob -F .is preferably ofthe so-called p Iscrewless variety, inthat it maybe secured I `constitute Athe -.o erating -mechanism ...or

means and are o -course .accessiblegat .all times to theuser.

Gis aspindle.. l

y ylllzisalatch .bolt or head.

Y .I is a latch-'slide supportpreferably1in cured rigidly tothe nfront 4plate.C.andbehind the latch H. l n

J-isasuitable latch-slide connected to the Katthe Otherend.

bo t `to be .retractedrwhen .the latch-slide .is

catedat'L.l

.M-is anabutment tween which abutmentand the bolt IHLis located a spring N, l.by which .the'bolt .willbe normally pressed .outwardly through the *face-platea@ -ently .mounted `on- ,the side plates A B, respectively, 1 vand are very securely ,held 1. there- .by. The-knobs :constitute operating .mechthe llatch mechanism. .As a further .means .removal or tearing awayof .the same most ypart of anyarticular.mechanism ;to work smoothly, yw ich defect .maybe `corrected .readily'lost-- or broken.

In applying .the mechanism toa rdoorrthe -carpenter has merely to forma shallownotch the end lateC. Thisnotch. also affordssuf- In the form lshown the .case ist out ;away 'sli htlyy to `the rear of the boltsto'kpermit said Y.

. f7 drawnback.`r This.cutfawayportionlislindivfor supporting-said knobs andrendering :the f .85 Vdiflicult I cause said knobs tobearrangedjn f ,-licient c earancefor the-boltlwhen;the'latterv .is .retracted. .addition 4.to Yforming this l the y yform of a-case and arrangedsbetween the Side v plates A and B, yet.spacedapart.therefr0m.

This slide-.support or case I is vpreferably sebolt H at one end,andengaginga.rollback Raenor. heknobsnandxr' Mead@'end-` f I anism and are accessibleoneateach'sideof v necessity o f actually applying .it to adoor. d 1 Such .tests will reveal .anyfailure .uponthe `beforelit is vactually shipped. vVhen shipped, the partsbeing all assembled cannot become IOO the edge ofthe door-stile yof .sufficient j depthyto.receivelthebossnthe screw `14E-fandr notch he will bore a hole in the edge of the door of a suflcient size to receive the case I, this -hole being formed approximately in the center of the edge, leaving substantial walls on each side to reserve the original strength of the door-stile. One more hole is bored transversely through the door-stile to receive the spindle G. The spindle Gr is then removed by Erst removing the knob F, which knob F is then attached and the mechanism is ready for use.

Of course the number of screws employed to hold the plates together and against the sides of the door-is immaterial.

The case I is preferably formed in sections, which may be secured together in any wellknown manner when the parts are assembled within the same; but the form or method of construction of the case is immaterial.

It has been my ur ose herein to describe "as briefly as possib e t e most important features and flmctions of this new type of mechanism, and it should therefore be understood that I havenot attempted an exhaustive description thereof. Many 'advantages not referred to will be apparent to a mechanic and user, and to the former willl occur various modifications that may be made in the construction and mode of operation Without departure from the spirit and scope of this invention.

It will be observed that by connecting the case I to the end plate and projecting it rearwardly parallel, or substantially so, to the side plate there will always be a fixed distance between the inner edge of the outer side plate and the bolt, whereby the carpenter 1s greatly facilitated in applying the striker-plate to the door-casing with reference to lts point of contact with the latch.

What I claim is- 1. In a latch mechanism, the combination of two separate side plates adapted to opposite sides of a door, an end late secured to j one of said side plates and a apted to extend across the edge'of a door, means for adjusting the plates to doors of dierent thicknesses, a

'i ifbolt and bolt-operating means and su port- 6o ing means therefor rigidly carried by t e end plate and between the side plates, and an accessible operating mechanism rotatably supf ported by one ofthe side plates.

2. In a latch mechanism, the combination of a side plate adapted to the side of a door,

an end plate rigidly secured to said side plate and adapted to extend across the edge of the door, a supporting-case for the latcli mechanism rigidly supported by the end plate and separated from and in a iixed position relative to the side plate, and adapted to lit in a mortise, and accessible operatingmechanism rotatably carried by said side plate.

3. In alatch mechanism, a side plate ada )ted to the side of a door, an end plate rigidly secured thereto and adapted to the edge of a door, a bolt, bolt-operating means, a rigid support therefor at the rear of said end plate, and spaced apart from said side plate, and an accessible operating device supported b said side plate and arranged to connect Wit i said bolt-o erating device through said side plate.

4i. n a latch mechanism, a bolt, bolt-operating means, a support therefor arranged to enter a cavity in t e edge of a door, a side plate arranged to bear against the side of a door, an actuating device carried by said side plate, and rigid means of connection between the side plate and the support for said bolto erating means for effecting a iixed relative alinement between said support and said side ate.

p 5. In a latch mechanism, two side lates adjustable relatively to each other an each having a spindle -passage, an end plate carried by one of said side lates, a atch-bolt operable through said en late, a latch-slide arranged to coperate wit said bolt, a case or frame for sup ortinfT said latch-slide and connected to sani) end p'late but spaced a )art from both of said side plates, a roll-bac in said frame, said roll-back having a s indlepassage, the spindle-passa e in said sidle plate re istering with the spin le-passage in said roll-back', a spindle, and means for operating said spindle.

6. In a latch mechanism a frame comprising two plates each plate having a spindlepassage and being adjustable relatively to each other, an end plate carried by one of said plates and overlying the edge of the IOO other, a latch-bolt and latch-slide, a case for supporting said latch-slide, said case being connected to said end plate and projecting rearwardly therefrom parallel with said side lates, and spaced a art therefrom, a rollback carried by sai case and cooperating with said slide, the spindle-passage through both of said plates registering with said ro back, and knobs separately mounted on said plates so as to move therewith, and a spindle connecting said knobs with said roll-back.

7. In a latch mechanism, a side plate, an end plate carried thereby, a case rigidly carried by said end plate and extendin rearwardly thereof substantially aralle with and separated from said side p ate, a latchbolt, latch-operating means including a slide and a roll-back, said parts being mounted in said case, a spindle arranged to engage said roll-back and accessible through saiolhsidle port being connected to said end late and plate anda knob carried by said side plate substantially parallel With saiol side plate, 1o

and connected With said spindle. and means carried by said side plate for oper- 8. In a latchmechanism, a side plate aolapt-l ating said bolt-operating means. 5 ed to the side of a door, an end plate carried y HENRY G. VOIGHT. thereby, and ada ted to the edge of a door, a Witnesses: bolt projecting through said end plate, bolt- L. VREELAND. operating means, a support therefor, said sup- ROBT. S. ALLYN. 

